/*
 * Copyright (c) 2008-2011, Petr Panteleyev
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice,
 *       this list of conditions and the following disclaimer in the documentation
 *       and/or other materials provided with the distribution.
 *    3. The name of the author may not be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.panteleyev.otherblogs;

import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;

import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;

import org.panteleyev.blogapi.Category;
import org.panteleyev.swing.BasicDialog;
import org.panteleyev.swing.CheckListCellRenderer;
import org.panteleyev.swing.OkCancelButtonPanel;
import org.panteleyev.swing.SimpleListModel;

public class CategorySelectionDialog extends BasicDialog<JFrame> {
    private JList<Category>             catList = new JList<>();
    private SimpleListModel<Category>   listModel;
    private ArrayList<Category>         categories;
    private boolean[]                   selected;

    public CategorySelectionDialog(JFrame parent, ArrayList<Category> categories, ArrayList<Integer> cats) {
        super(parent);
        initComponents();

        this.categories = categories;
        selected = new boolean[categories.size()];

        for (int i = 0; i < categories.size(); i++) {
            for (Integer catId : cats) {
                if (catId.equals(categories.get(i).getId())) {
                    selected[i] = true;
                    break;
                }
            }
        }

        createList();
        pack();
    }

    private void initComponents() {
        setTitle(L10N.CAT_DIALOG_TITLE.s());
        getContentPane().setLayout(new BorderLayout());

        catList.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent evt) {
                if (evt.getClickCount() == 2) {
                    int index = catList.getSelectedIndex();
                    if (index != -1) {
                        selected[index] = !selected[index];
                        listModel.fireListDataChanged();
                    }
                }
            }
        });

        getContentPane().add(new JScrollPane(catList), BorderLayout.CENTER);
        getContentPane().add(new OkCancelButtonPanel(this), BorderLayout.SOUTH);
    }

    private void createList() {
        catList.setCellRenderer(new CheckListCellRenderer<Category>() {
            @Override
            public java.awt.Component getListCellRendererComponent(JList<? extends Category> list, Category cat, int index, boolean isSelected, boolean hasFocus) {
                if (cat != null) {
                    setSelected(selected[index]);
                    setText(cat.getName());
                }

                setBackground(isSelected ? list.getSelectionBackground() : list.getBackground());
                setForeground(isSelected ? list.getSelectionForeground() : list.getForeground());
                setEnabled(list.isEnabled());
                setFont(list.getFont());
//                setBorder(hasFocus ? focusBorder : noFocusBorder);
                return this;
            }
        });

        listModel = new SimpleListModel<Category>() {
            @Override
            public Category getElementAt(int index) {
                return categories.get(index);
            }
            @Override
            public int getSize() {
                return categories.size();
            }
        };

        catList.setModel(listModel);
    }

    public ArrayList<Integer> getSelectedCategories() {
        ArrayList<Integer> list = new ArrayList<>();

        for (int i = 0; i < selected.length; i++) {
            if (selected[i]) {
                list.add(categories.get(i).getId());
            }
        }

        return list;
    }
}
